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Thread: Shunt regulator? 317/337 solution
www.piclist.com/techref/index.htm?key=shunt+regulator
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face BY : Roman Black email (remove spam text)



Michael Rigby-Jones wrote:
{Quote hidden}

As I said, a shunt regulator needs positive feedback,
ie; if voltage is too high, must turn on more.
The actual inversion is provided by the nature
of it being a shunt reg.

I really don't think you can do it with a 317,
but I already posted a one transistor solution that
I have used for years that is cheaper and just
as simple. You are not going to get short circuit
protection from a shunt reg anyway so the extra
cost of a regulator chip is not justified. :o)

-Roman

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